儿科慢性疾病治疗功能评估-疲劳（PedsFACIT-F）可在各种临床环境中衡量疲劳。本研究旨在验证阿拉伯语版本（PedsFACIT-F-Ar）在癌症患者中的测量性能。在这项横断面验证研究中，向114名年龄在8-18岁的参与者（74名男孩和40名女孩）进行了PedsFACIT-F和小儿多维疲劳生活质量量表（PedsQL-MFS）的测试。采用探索性因子分析检验了PedsFACIT-F-Ar的结构效度，采用假设检验方法研究其构想效度，以预测与PedsQL-MFS域和总分的中等相关性（ρ≥0.4）。其可靠性也进行了测试。PedsFACIT-F-Ar是一个解释总方差的两因子模型，占67.38％。它与PedsQL-MFS显著相关（ρ>0.84）。它显示了优秀的内部一致性（Cronbach's α = 0.93）和测试-重测信度（ICC2.1 = 0.99；95％CI：0.96-0.99）。Bland-Altman分析显示两次测试之间没有系统误差。测量标准误差、最小可检测变化（MDC95）和MDC％分别为0.92、2.56点和2.88％，不存在下限或上限效应。PedsFACIT-F-Ar显示了优异的心理测量性能。研究结果表明该量表具有临床实用性。

The pediatric Functional Assessment of Chronic Illness Therapy-Fatigue (PedsFACIT-F) measures fatigue in various clinical settings.To verify the measurement properties of the Arabic version (PedsFACIT-F-Ar) in patients with cancer.In this cross-sectional validation study, the PedsFACIT-F and the Pediatric Quality of Life Multidimensional Fatigue Scale (PedsQL-MFS) were administered to 114 participants (74 boys and 40 girls) aged 8-18. Exploratory factor analysis was used to test the structural validity of PedsFACIT-F-Ar. Its construct validity was investigated using the hypothesis testing method to predict a moderate correlation (rho ⩾ 0.4) with the PedsQL-MFS domains and the total score. Its reliability was also tested.The PedsFACIT-F-Ar is a two-factor model that explains 67.38% of the total variance. It is significantly correlated with PedsQL-MFS (rho > 0.84). It displayed excellent internal consistency (Cronbach's α= 0.93) and test-retest reliability (ICC2.1= 0.99; 95% CI: 0.96-0.99). Bland-Altman's analysis revealed the absence of a systematic error between the two test sessions. The standard error of measurement, minimal detectable change (MDC95), and MDC% were 0.92, 2.56 points, and 2.88%, respectively, with no floor or ceiling effects.The PedsFACIT-F-Ar demonstrated excellent psychometric properties. The findings suggest the clinical usefulness of this scale.